Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
An average high-temperature of a still mild 14.4°C (57.9°F) marks September, exhibiting a close resemblance to the conditions in August. In the month of September, Alloway experiences a minor discrepancy from peak daytime temperatures, settling at an average low-temperature of 10.5°C (50.9°F).Humidity
In September, the average relative humidity is 86%.Rainfall
In Alloway, in September, during 18.2 rainfall days, 46mm (1.81") of precipitation is typically accumulated. Throughout the year, there are 228.1 rainfall days, and 634mm (24.96") of precipitation is accumulated.Snowfall
In Alloway, snow does not fall in May through November.Daylight
The average length of the day in September is 12h and 44min.On the first day of September, sunrise is at 6:25 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 6:56 pm BST.
Sunshine
In Alloway, the average sunshine in September is 6.2h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September in Alloway?
How many hours of sunshine does Alloway have in September?
What are the months with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Alloway, United Kingdom
- Average high temperature in September: 14.4°C
The warmest month (with the highest average high temperature) is July (16.1°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (11.4°C).
The coldest month (with the lowest average low temperature) is February (3.1°C).
Average pressure in September
Alloway, United Kingdom
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is November (1007mbar).
Average wind speed in September
Alloway, United Kingdom
- Average wind speed in September: 19.2km/h
The windiest month (with the highest average wind speed) is January (25.6km/h).
The calmest months (with the lowest average wind speed) are June and July (15.3km/h).
Average humidity in September
Alloway, United Kingdom
- Average humidity in September: 86%
The month with the highest relative humidity is August (87%).
The month with the lowest relative humidity is April (82%).
Average rainfall in September
Alloway, United Kingdom
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Alloway, United Kingdom
- Average rainfall days in September: 18.2 days
The month with the highest number of rainy days is August (22.2 days).
The month with the least rainy days is April (15.4 days).
Average snowfall in September
Alloway, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (22mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Alloway, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Alloway, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in September: 6h and 1min
The month with the most sunshine is June (Average sunshine: 7h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in September
Alloway, United Kingdom
- Average sunshine days in September: 8.7 days
The month with the most sunshine days is April (12 days).
The month with the least sunshine days is August (5.8 days).
Average UV index in September
Alloway, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Alloway, United Kingdom
- Average cloud cover in September: 58
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in September
Alloway, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
